Spelling fixes: lenght->length

Signed-off-by: Paulius Zaleckas <pauliusz@yahoo.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 2ce3806..58fccc9 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -333,7 +333,7 @@
 	flush_user_icache_range((unsigned long) &frame->tramp[0],
 			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
-	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
+	/* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
 	 * So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP
 	 */